Kattis - Birthday Cake
Author: Benjamin Qi
Count the number of pieces. For each candle, the piece it's on is determined by which side of each line it lies on.
#include <bits/stdc++.h>using namespace std;using ll = long long;using ld = long double;using db = double;using str = string; // yay python!using pi = pair<int, int>;using pl = pair<ll, ll>;
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